利用ASP.NET的CustomValidator來檢查TextBox的日期格式

最近在MSDN論壇看到一個不錯的範例...

小弟就把它放到Blog...分享給大家呀...

ps.感謝提供此範例的chhuang大大

c#範例(VS2008)

CustomValidatorTest.aspx

01 <%@ Page Language="C#" AutoEventWireup="true" CodeFile="CustomValidatorTest.aspx.cs" Inherits="CustomValidatorTest" %>
02
03 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
04
05 <html xmlns="http://www.w3.org/1999/xhtml">
06 <head runat="server">
07     <title>CustomValidatorTest</title>
08 </head>
09 <body>
10     <form id="form1" runat="server">
11     <div>
12
13         <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
14         <asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="送出" />
15         <asp:CustomValidator ID="CustomValidator1" runat="server"
16             ControlToValidate="TextBox1" ErrorMessage="CustomValidator"
17             onservervalidate="CustomValidator1_ServerValidate" ValidateEmptyText="True"></asp:CustomValidator>
18
19     </div>
20     </form>
21 </body>
22 </html>
23

CustomValidatorTest.aspx.cs

using System;
02

using System.Collections;
03

using System.Configuration;
04

using System.Data;
05

using System.Linq;
06

using System.Web;
07

using System.Web.Security;
08

using System.Web.UI;
09

using System.Web.UI.HtmlControls;
10

using System.Web.UI.WebControls;
11

using System.Web.UI.WebControls.WebParts;
12

using System.Xml.Linq;
13

public partial class CustomValidatorTest : System.Web.UI.Page
15

{
16

protected void Page_Load(object sender, EventArgs e)
17

{
18

}
20

protected void Button1_Click(object sender, EventArgs e)
21

{
22

if (CustomValidator1.IsValid)
23

{
24

Response.Write("送出成功!");
25

}
26

}
27

protected void CustomValidator1_ServerValidate(object source, ServerValidateEventArgs args)
28

{
29

DateTime dt;
30

31 if (string.IsNullOrEmpty(args.Value))
32

{
33

CustomValidator1.ErrorMessage = "該欄位必填";
34

args.IsValid = false;
35

}
36

37 else if (DateTime.TryParseExact(args.Value, "yyyy/MM/dd", null,System.Globalization.DateTimeStyles.AllowWhiteSpaces, out dt) == false)
38

{
39

CustomValidator1.ErrorMessage = "日期格式為 yyyy/MM/dd";
40

args.IsValid = false;
41

}
42

else
43

{
44

args.IsValid = true;
45

}
46

}
47

}
48

執行結果：

參考網址：http://forums.microsoft.com/MSDN-CHT/ShowPost.aspx?PostID=3036812&SiteID=14

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2008/3/21 09:45| 閱讀數 : 5207 | 我要推薦 | Add Comment | 文章分類 : ASP.NET | 訂閱

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